Incorporation of surface modified TiO2 nanoparticles into polystyrene (PS) matrix was achieved by in situ bulk radical polymerization of styrene. The surface of TiO2 nanoparticles was modified with four amphiphilic esters of the gallic acid (octyl, decyl, lauryl and cetyl gallate), which have different lengths of hydrophobic alkyl chain (C8C16). FTIR and UV-Vis spectroscopy measurements confirmed the formation of a charge transfer complex between surface Ti atoms and gallic esters. Microstructural characterization of the synthesized nanocomposites revealed that the best dispersion of TiO2 nanoparticles in PS was achieved when the TiO2 surface was modified with octyl gallate. The presence of surface modified TiO2 nanoparticles by different alkyl gallates does not have an influence on the molecular weight and glass transition temperature of PS matrix. On the other hand, thermal and thermo-oxidative stability of PS were significantly improved by incorporation of surface modified TiO2 nano...particles. The most pronounced improvement of thermal and thermo-oxidative stability was observed for TiO2 nanoparticles surface modified with octyl gallate. POLYM. COMPOS., 2013.
TY - JOUR
AU - Džunuzović, Enis S.
AU - Džunuzović, Jasna
AU - Radoman, Tijana S.
AU - Marinović-Cincović, Milena
AU - Nikolic, Ljubisa B.
AU - Jeremić, Katarina B.
AU - Nedeljković, Jovan M.
PY - 2013
UR - http://cer.ihtm.bg.ac.rs/handle/123456789/1296
AB - Incorporation of surface modified TiO2 nanoparticles into polystyrene (PS) matrix was achieved by in situ bulk radical polymerization of styrene. The surface of TiO2 nanoparticles was modified with four amphiphilic esters of the gallic acid (octyl, decyl, lauryl and cetyl gallate), which have different lengths of hydrophobic alkyl chain (C8C16). FTIR and UV-Vis spectroscopy measurements confirmed the formation of a charge transfer complex between surface Ti atoms and gallic esters. Microstructural characterization of the synthesized nanocomposites revealed that the best dispersion of TiO2 nanoparticles in PS was achieved when the TiO2 surface was modified with octyl gallate. The presence of surface modified TiO2 nanoparticles by different alkyl gallates does not have an influence on the molecular weight and glass transition temperature of PS matrix. On the other hand, thermal and thermo-oxidative stability of PS were significantly improved by incorporation of surface modified TiO2 nanoparticles. The most pronounced improvement of thermal and thermo-oxidative stability was observed for TiO2 nanoparticles surface modified with octyl gallate. POLYM. COMPOS., 2013.
PB - Wiley-Blackwell, Hoboken
T2 - Polymer Composites
T1 - Characterization of in situ prepared nanocomposites of PS and TIO2 nanoparticles surface modified with alkyl gallates: Effect of alkyl chain length
VL - 34
IS - 3
SP - 399
EP - 407
DO - 10.1002/pc.22423
ER -
@article{
author = "Džunuzović, Enis S. and Džunuzović, Jasna and Radoman, Tijana S. and Marinović-Cincović, Milena and Nikolic, Ljubisa B. and Jeremić, Katarina B. and Nedeljković, Jovan M.",
year = "2013",
url = "http://cer.ihtm.bg.ac.rs/handle/123456789/1296",
abstract = "Incorporation of surface modified TiO2 nanoparticles into polystyrene (PS) matrix was achieved by in situ bulk radical polymerization of styrene. The surface of TiO2 nanoparticles was modified with four amphiphilic esters of the gallic acid (octyl, decyl, lauryl and cetyl gallate), which have different lengths of hydrophobic alkyl chain (C8C16). FTIR and UV-Vis spectroscopy measurements confirmed the formation of a charge transfer complex between surface Ti atoms and gallic esters. Microstructural characterization of the synthesized nanocomposites revealed that the best dispersion of TiO2 nanoparticles in PS was achieved when the TiO2 surface was modified with octyl gallate. The presence of surface modified TiO2 nanoparticles by different alkyl gallates does not have an influence on the molecular weight and glass transition temperature of PS matrix. On the other hand, thermal and thermo-oxidative stability of PS were significantly improved by incorporation of surface modified TiO2 nanoparticles. The most pronounced improvement of thermal and thermo-oxidative stability was observed for TiO2 nanoparticles surface modified with octyl gallate. POLYM. COMPOS., 2013.",
publisher = "Wiley-Blackwell, Hoboken",
journal = "Polymer Composites",
title = "Characterization of in situ prepared nanocomposites of PS and TIO2 nanoparticles surface modified with alkyl gallates: Effect of alkyl chain length",
volume = "34",
number = "3",
pages = "399-407",
doi = "10.1002/pc.22423"
}
Džunuzović, E. S., Džunuzović, J., Radoman, T. S., Marinović-Cincović, M., Nikolic, L. B., Jeremić, K. B.,& Nedeljković, J. M. (2013). Characterization of in situ prepared nanocomposites of PS and TIO2 nanoparticles surface modified with alkyl gallates: Effect of alkyl chain length.
Polymer Composites
Wiley-Blackwell, Hoboken., 34(3), 399-407.
https://doi.org/10.1002/pc.22423
Džunuzović ES, Džunuzović J, Radoman TS, Marinović-Cincović M, Nikolic LB, Jeremić KB, Nedeljković JM. Characterization of in situ prepared nanocomposites of PS and TIO2 nanoparticles surface modified with alkyl gallates: Effect of alkyl chain length. Polymer Composites. 2013;34(3):399-407
Džunuzović Enis S., Džunuzović Jasna, Radoman Tijana S., Marinović-Cincović Milena, Nikolic Ljubisa B., Jeremić Katarina B., Nedeljković Jovan M., "Characterization of in situ prepared nanocomposites of PS and TIO2 nanoparticles surface modified with alkyl gallates: Effect of alkyl chain length" Polymer Composites, 34, no. 3 (2013):399-407,
https://doi.org/10.1002/pc.22423 .
